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HomeKey Engineering MaterialsKey Engineering Materials Vol. 766Preparation and Characterization of Lead-Free...

Preparation and Characterization of Lead-Free (Ba_0.4Sr_0.4Ca_0.2)(Zr_0.05Ti_0.95)O₃ Ceramics Using BST Seed Induced Method

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Abstract:

The solid solution of lead-free (Ba_0.4Sr_0.4Ca_0.2) (Zr_0.05Ti_0.95) O₃ (BSCZT) ceramics were prepared from the seed induced method. The Ba_0.6Sr_0.4TiO₃ (BST) were used as the seed crystals, they were prepared using the molten salt technique. The phase formation was examined using the X-ray diffraction technique (XRD). It was found that the single phase perovskite structure of BST was obtained at a temperature of 800°C. The ceramics were prepared using the conventional solid state reaction by adding of BST seed crystals at 2.5, 5, 7.5 and 10 mol%. The structure showed that a single phase perovskite was obtained after sintered at 1400 °C. This work confirmed that BST seed crystal successfully diffused into BSCZT ceramic and the BSCZT ceramic with a seed crystal showed higher dielectric than the BSCZT ceramic without seed crystals.

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Traditional and Advanced Ceramics III

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Periodical:

Key Engineering Materials (Volume 766)

Pages:

180-185

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.766.180

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Online since:

April 2018

Authors:

Jiraporn Dangsak, Sukum Eitssayeam, Tawee Tunkasiri*, Uraiwan Intatha

Keywords:

Lead Free Ceramic, Molten Salt, Perovskite, Seed Induced Method

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© 2018 Trans Tech Publications Ltd. All Rights Reserved

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